Mcwsky09
Member
They fly only because they "beat the air into submission". Problems with the blades........auto rotate & come down softly I'm told.
I believe that depends on the design - some are auto-gyros and some are not.
I was thinking that it was a strobe type effect but looks more like editing in post but I could be wrong. I have seen numerous examples from car wheels to centrifuges where specific RPMs and patterns can cause a visual effect that fools your eye/brain into thinking the object is either not spinning, or spinning backwards, or spinning at a rate other than the true rotational speed.
There was a program on awhile back - might have been the Mythbusters but I think it was something else - where they showed old movies where the wagon wheels appeared to be spinning counter to the rotation caused by the carriage moving forward and they were "testing" to see if this was an artifact of the way the camera/film captured the image or if it was observable directly without the intervention of a camera. I could have told them without doing the experiment that I have seen plenty of examples without camera or film involved. They did conclude that such phenomenon can be observed directly.
With the helicopter - I would have expected a bit more blurring or some precession of the blades as - but if there was an artificial light source used or manipulation of the camera capturing the footage that could explain it.